/*
*  Copyright (c) 2001 Sun Microsystems, Inc.  All rights
*  reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*  notice, this list of conditions and the following disclaimer.
*
*  2. Redistributions in binary form must reproduce the above copyright
*  notice, this list of conditions and the following discalimer in
*  the documentation and/or other materials provided with the
*  distribution.
*
*  3. The end-user documentation included with the redistribution,
*  if any, must include the following acknowledgment:
*  "This product includes software developed by the
*  Sun Microsystems, Inc. for Project JXTA."
*  Alternately, this acknowledgment may appear in the software itself,
*  if and wherever such third-party acknowledgments normally appear.
*
*  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA"
*  must not be used to endorse or promote products derived from this
*  software without prior written permission. For written
*  permission, please contact Project JXTA at http://www.jxta.org.
*
*  5. Products derived from this software may not be called "JXTA",
*  nor may "JXTA" appear in their name, without prior written
*  permission of Sun.
*
*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
*  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
*  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
*  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
*  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*  SUCH DAMAGE.
*  ====================================================================
*
*  This software consists of voluntary contributions made by many
*  individuals on behalf of Project JXTA.  For more
*  information on Project JXTA, please see
*  <http://www.jxta.org/>.
*
*  This license is based on the BSD license adopted by the Apache Foundation.
*
*  $Id: UnicastSecurePipeAdvCommand.java,v 1.3 2007/05/22 06:15:29 nano Exp $
*/

package net.jxta.myjxta.plugins.secureonetoone;

import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredDocument;
import net.jxta.document.StructuredTextDocument;
import net.jxta.endpoint.MessageElement;
import net.jxta.endpoint.TextDocumentMessageElement;
import net.jxta.logging.Logging;
import net.jxta.myjxta.dialog.Dialog;
import net.jxta.myjxta.dialog.DialogManager;
import net.jxta.myjxta.dialog.DialogMessage;
import net.jxta.myjxta.dialog.OneToOneDialog;
import net.jxta.myjxta.dialog.commands.AbstractCommand;
import net.jxta.myjxta.util.CredentialUtil;
import net.jxta.myjxta.util.Group;
import net.jxta.peergroup.PeerGroup;
import net.jxta.pipe.PipeService;
import net.jxta.protocol.PipeAdvertisement;

import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author james todd [gonzo at jxta dot org]
 * @version $Id: UnicastSecurePipeAdvCommand.java,v 1.3 2007/05/22 06:15:29 nano Exp $
 */

public class UnicastSecurePipeAdvCommand
        extends AbstractCommand {

    public static final String ID = "net.jxta.myjxta.dialog.commands.UnicastSecurePipeAdvCommand";
    public static final String PIPE = "pipe";

    private static final Logger LOG = Logger.getLogger(UnicastSecurePipeAdvCommand.class.getName());

    public String getId() {
        if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
            LOG.info("returning id: " + ID);
        }

        return ID;
    }

    public boolean process(Dialog dialog, DialogMessage msg) {
        if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
            LOG.info("process: " + (msg != null ? msg.toString()
                    : null));
        }

        String cmd = msg != null ? msg.getCommand() : null;
        Group g = dialog.getGroup();
        PeerGroup pg = g.getPeerGroup();
        DialogMessage dm = new DialogMessage(pg.getPeerName(), null,
                pg.getPeerGroupID().toString(), pg.getPeerGroupName());

        if (cmd != null &&
                cmd.length() > 0) {
            if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
                LOG.info("processing command: " + cmd);
            }

            setCommand(cmd);

            MessageElement c = msg.getMessageElement(CredentialCommand.CREDENTIAL);

            if (CredentialUtil.importCredential(c, g, dialog.getMyJXTA())) {
                StructuredDocument d = getPipeAdv(g);
                TextDocumentMessageElement te = d != null ? new TextDocumentMessageElement(PIPE, (StructuredTextDocument) d, null) :
                        null;

                if (te != null) {
                    setReply("pipe:" + PIPE);
                    setStatus(true);

                    dm.setCommand(getResponse());
                    dm.addMessageElement(PIPE, te);

                    if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
                        LOG.info("results: " + dm);
                    }
                } else {
                    if (Logging.SHOW_SEVERE && LOG.isLoggable(Level.SEVERE)) {
                        LOG.severe("can\'t construct document");
                    }
                }
            } else {
                if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
                    LOG.info("certificate not imported");
                }
            }
        } else {
            if (Logging.SHOW_SEVERE && LOG.isLoggable(Level.SEVERE)) {
                LOG.severe("invalid command: " + cmd);
            }
        }

        if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
            LOG.info("dispatching: " + (dm.toString()));
        }

        dialog.dispatch(dm);

        if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
            LOG.info("dispatching: " + getStatus());
        }

        return getStatus();
    }

    private StructuredDocument getPipeAdv(Group g) {
        if (Logging.SHOW_INFO && LOG.isLoggable(Level.INFO)) {
            LOG.info("getPipeAdvl");
        }

        String pn = Dialog.getDialogNamer(OneToOneDialog.class).
                getDialogName(g.getPeerGroup().getPeerName());
        PipeAdvertisement pa = DialogManager.getInstance(g, pn,
                PipeService.UnicastSecureType).getPipeAdv(g.getPeerGroup());

        return (StructuredDocument) pa.getDocument(MimeMediaType.XMLUTF8);
    }
}
